Statistical analysis of the propagator method for DOA estimation without eigendecomposition
J. Sanchez-Aranjo, Sylvie Marcos · 2002
The propagator method (PM), as well as SWEDE (subspace method without eigendecomposition) and BEWE (bearing estimation without eigendecomposition), belong to a class of subspace-based methods for direction-of-arrival (DOA) estimation which do not require the eigendecomposition of the sample covariance matrix of the received signals and which only use linear operations on the covariance matrix of the received data. These methods can therefore be implemented with a reduced complexity compared to MUSIC. Marcos and Benidir (1990) proposed a method for estimating the power of the sensor noise and the DOA using the PM. The paper statistically analyses these noise power and DOA estimates.